<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
	<title>留言板首页</title>
</head>
<body>
	<form action="index.php" method="post">
		用户名：<input name="username" type="text" maxlength="10">
		密码：<input name="password" type="password">
	</form>
</body>
</html>